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> the curtains needed to be changed on a regular basis due to them becoming radioactive

Why would they become radioactive?

IDK maybe some sort of Xray like beams were used for better penetration? If the stories are even true, it could have been as simple as changing the curtains to remove listening devices or vary the resonant frequencies.

Anything that would make curtains radioactive would almost certainly also kill anyone in the room in fairly short order. So how many people were killed this way?

You seem to be arguing with me about something that I qualified as a rumor but just to button up this thread I did do a bit of research and found the article below.

Here is a snippet from it and I would suggest seeking answers from those who have a greater expertise/knowledge of these devices.

>>>The system used a "horn antenna" to blast a beam of microwave energy at between 30GHz and 100GHz through a building wall: "If people are speaking inside the room, any flimsy surface, such as clothing, will be vibrating.

https://www.theguardian.com/world/2013/aug/22/gchq-warned-la...

I am not saying that the Stasi built a cyclotron across from the west German embassy then used it to bounce sub atomic(Radioactive) particles back to their spectrum analyzers to eavesdrop on western bureaucrats, but then again I'm not saying they didn't.

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